INTA HM.1 explained

The INTA HM.1, also known as Huarte Mendicoa HM-1, was a 1940s Spanish primary trainer designed by the Instituto Nacional de Técnica Aeronáutica (INTA) and built for them by Aeronáutica Industrial S.A..

Development

The HM.1 was designed by INTA as a two-seat primary training monoplane with a fixed tailwheel landing gear. It was followed by a number of similar aircraft with equipment and accommodation changes. The last of the family was the HM.7 built in 1947 which was an enlarged four-seat version powered by a 240 hp (179 kW) Argus As 10C engine, the HM.7 was the last powered aircraft designed by the Institute.

Variants

HM.1

Two-seat primary trainer

HM.2

enclosed-cabin version of the HM.1 with retractable landing gear.

HM.3

open-cockpit floatplane variant

HM.5

single-seat advanced trainer

HM.7

enlarged four-seat version

HM.9

two-seat glider tug

Operators

Spanish Air Force

References

Bibliography

Book: Bridgman, Leonard . Jane's Fighting Aircraft of World War II. 1988 . Crescent Books. New York. 0-517-67964-7.
Book: The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.